diff --git a/tests/color_test.py b/tests/color_test.py
index 4794e2a..79b5a28 100644
--- a/tests/color_test.py
+++ b/tests/color_test.py
@@ -60,7 +60,7 @@ def test_normalize_spaces_in_inline_code():
 
 @given(
     text(alphabet=characters(min_codepoint=32,
-                             blacklist_characters="*_`"))
+                             blacklist_characters="*_`\\"))
     .map(lambda s: '*' + s))
 def test_unpaired_prefix_asterisk_without_space_is_literal(text):
    """An unpaired asterisk at the beginning of the line, without a space